The structure of roots blower:

Roots blower is composed of five parts: casing, wallboard, impeller, fuel tank, and muffler. 

Chassis: Mainly play the role of support (wallboard, impeller, muffler) and fixation. 

Wallboard: Mainly used to connect the casing and the impeller, and support the rotation of the impeller, as well as the effect of sealing the end face.

Impeller: It is the rotating part of the Roots blower. It is divided into two blades and three blades. The three blades have many advantages such as smaller air pulsation, lower noise and more stable operation than the two blades, it has gradually replaced the two blades Roots blower. 

Oil tank: mainly used to store lubricating oil used to lubricate gears and bearings. 

Silencer: used to reduce the noise generated by air pulsation